if $id is defined $self->display($id) is being evaluated, which actually
sets the display id of $self to be $id
Stefan
Sally Li wrote:
>Hi, there,
>>I wonder what does it means in the following
>statement?
>>$id && $self->display($id)
>>This is from the constructor (new ()) of object
>PrimarySeq.pm.
>>Thanks!
>>Sally.
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